unannounced

un an nounced |ˌənəˈnounst ˌənəˈnaʊnst | ▶adjective not made known; not publicized: the company has justified its recent unannounced addition of chlorine to its water. • without previous notice or arrangement and therefore unexpected: he arrived unannounced.

unannounced

un |announced |ʌnəˈnaʊnst | ▶adjective not made known; not publicized. • without previous notice or arrangement and therefore unexpected: he arrived unannounced.

unannounced

ù n an n ó unced /-t /形容詞 公表 [発表 ]されていない ; 予告なしの ; (人の )到着を知らされていない .